Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
I am sorry your having this problem
can you turn the shaft the actuator goes onto to the low position by hand ?
ok if you can not align it by hand to the new motor position then you will need to plug in the new motor and hold it up against the shaft while applying pressure and have some one turn the key ON and shift the push button while your pushing on the motor and it should turn enough when pushing on it to drop on the splines
once that is done then you should be able to bolt it up
no that should show a position no matter what if plugged into the new motor
is the inside fuse box is the 4WD fuse good ? if the under hood fuse box is the fuse called TREC good ?
may i ask why the motor is being changed ?
can you be sure both of those fuses are good ?
if you plug in the old motor will it show a position ?
the inside drivers side fuse box the fuse called 4WD and in the under hood fuse box the fuse called TREC
will the OLD motor when plugged in show a position ?
ok if the 2 fuses are good with the new or the OLD motor plugged in neither will show a position ?
can you leave the new one plugged in and disconnect both battery cables for 5 minutes then touch the 2 battery cables together for 2 minutes then reconnect the battery cables will it show a position ?
at this point it is acting like the 4WD module is not responding correctly
it might reset the programming in the module yes and see if we show a position
if it still will not we will have to see what code or codes are set in the 4WD module
you need the higher end scan tool for 4WD codes
try the battery thing
if it still will not show a position at all then a scan tool would need to be plugged in and read the 4WD codes
when a switch will not show a position either the module is not seeing a position or the module itself is possibly causing this issue or a rare switch issue
knowing the codes set would lead us to the problem area but a lot of those 4WD codes need to be diagnosed with a scan tool to see live 4WD computer data
the grounds have to be good at the switch is working and the switch uses the same grounds as the motor and module use
but it depends on the codes set
i agree with you on that
it is like the new motor is acting defective
and if it is a code or codes set would tell us if there is a case motor issue
ok sounds good
just by hand
but the new motor when plugged in should show some kind of position
lets see if another expert has any ideas
hang on another expert will reply back to you
Hi there, I am Cam. Question, where did you source the new motor from?
For codes, I have found a device that reads all codes, its a blue driver, its about 100$ and works with your smart phone. You can get them on amazon.com
Strange. I am wondering if you have a faulty actuator then. Knowing codes would help. I don't suppose you want to take apart the old one to get the sensor out and split the sensor to see if the surface is and, and if it is, you can replace just that sensor.
Ok, lets split the sensor. Attached are replacement directions for the sensor. You can easily get to it and if the old sensor is not the sealed type, open it up to have a look.
Its a common issue on these sensors. One half is a resistive material and the other has fingers that slide over it. These are notorious for failing internally, the fingers breaking off or scratching the material off and causing issues.
Without codes from the system or live data, we are grasping at what to do. Computerized systems are a pain that way. The sensors are common for failing and I was hoping that your new motor is faulty but the only sensor is shot in your old one and we can take back the motor and get just the sensor.
I am here,
But I get the sense I may not be able to help you as you don't have the codes from the system, I will open this up to other experts.